Belle is excited when she receives a telephone call from her grandmother on her birthday. When Belle's grandmother asks Belle how old she is, Belle holds up 3 fingers in front of the phone. Belle's belief that because she can see her fingers, so can her grandmother, reflects the Piagetian concept of

egocentrism
echocentrism
enocentrism
none of the above

Using the factors of production to make one product always means that o .) a company may experience a shortage of materials o . )a nation can make more money o. ) it is possible to make too many of that product o. ) fewer resources are left to make something else

Mr. mann's science students were experimenting with speed. they set up a 1 meter (100 cm) track. the students used balls instead of cars. the balls were different sizes and made of different materials. four at a time, students rolled balls around the track to see which had the fastest and slowest speeds. some of their data are shown in the table. which ball will take the longest to complete one lap around the track?

The zealots and sages, like ben zaccai, opposed the romans in different ways. describe the differences.